07-24-2009 03:32 AM - edited 03-13-2019 06:32 PM
In wireshark i can see lots of duplicate udp packets flowing in between ip-phone and h323 gateway. What could be the reason?
07-25-2009 01:04 PM
Are you using SPAN to capture them? If you have SPAN configured on several ports on your LAN switch, and the packets traverse more than one port (eg, in one port, out another) SPAN may be copying the packet on ingress and also on egress.
c
07-26-2009 11:08 PM
Thanks for the reply.
Yes we are using RSPAN to capture IP-Phone and Voice gateway traffic for voice recording. Is there any solution to avoid this thing?
Thanks & Regards,
Santosh
07-26-2009 11:18 PM
All IP-Phones and Voice Gateway are in same voice vlan and we are spanning that vlan.
07-26-2009 11:51 PM
Either reconfigure your LAN switch (eg, capture on only one port), or modify your application to deal with the duplicates. If you want a solution that works in a variety of environments, you really need to deal with the duplicates.
c
07-29-2009 08:40 PM
Thank you very much
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